Saw-handle.



c. M. 'MINTON.

SAW HANDLE.

APPLICATION rum JUNE 9, 1909.

Patented Mar. 22, 1910.

UNHED snares Parana caries.

CHARLES lVL MINTON, OF PI -IILOMATH, OREGON.

SAW-HANDLE.

Application filed June 9,

T all whom it may concern:

Be it known that I, CHARLES M. MINTON, citizen of the United States,residing at Philomath, in the county of Benton and State of Oregon, haveinvented certain new and useful Improvements in Saw-Handles, of whichthe following is a specification.

This invention relates to saw handles, and has for its object to effectcertain improvements in this class of devices whereby the handle may bereadily attached to or detached from the saw.

A further object of the invention is to provide a handle capable ofbeing adjusted at any angle or inclination with respect to thelongitudinal plane of the saw, thereby to facilitate the sawing of logsand the like.

A further object is to provide a handle receiving socket having atubular extension in which is mounted for rotation, a sleeve, one end ofwhich is provided with ratchet teeth for cooperation with a springpressed pawl, while the other end thereof is threaded for the receptionof a saw guard, there being a clamping member or bolt extending throughthe sleeve for connection with the saw, so that by rotating the handlein a vertical plane the bolt will be actuated to clamp the saw inengagement with said guard.

A still further object is generally to improve this class of devices soas to increase their utility, durability, and efliciency.

Further objects and advantages will appear as the description proceeds,it being understood that various changes in form, proportions, and minordetails of construction may be resorted to within the scope of theappended claims.

For a full understanding of the invention and the merits thereof, and toacquire a knowledge of the details of construction and the means foreffecting the result, reference is to be had to the followingdescription and accompanying drawings, in which;

Figure 1 is a side elevation of a saw handle constructed in accordancewith my invention; Fig. 2 is an enlarged longitudinal sectional view ofthe same; Fig. 3 is a vertical sectional view taken on the line aa ofFig. 1, the diiferent positions assumed by the saw and guard withrespect to the handle being shown in dotted lines; Fig. 4 is atransverse sectional View taken on the line bb of Fig. 3; and Fig. 5 isa per- Specification of Letters Patent. Patented B1312 22, 1910.

Serial No. 501,084.

spective View of the collar detached from the handle.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the accompanying drawings,by the same reference characters.

The device comprises a casing or housing 5 having a transverse bore 6and proy'ided with oppositely disposed sockets 7 for the reception ofthe adjacent ends of a handle 8, the latter being rigidly secured withinthe socket by bolts, screws, or similar fastening devices, as shown.

Extending laterally from one side of the casing or handle receivingsocket 5, and preferably formed integrally therewith is a tubularextension 9 the interior walls of which are preferably disposed inhorizontal alinement with the walls of the bore 6 so as to form acontinuation of the latter.

Mounted for rotation in the extension 9 is a tubular member or sleeve 10having one end thereof extending within the bore 6 and provided with acircumferential row of ratchet teeth 11 and its opposite end threadedexteriorly at 12 for engagement with the interiorly threaded walls of anipple 13 carried by a guard or shield 14. Tlre guard or shield 14 isprovided with a longitudinally disposed seating groove 15 for thereception of the adjacent end of the saw indicated at 16, the lower endof the guard 14: being bent laterally to produce an arm 18 adapted toform a housing for the teeth of the saw, and thus to prevent the latterfrom coming in contact with and cutting or otherwise lacerating the handof the operator.

Housed within the tubular member or sleeve 10 is a clamping device,preferably in the form of a bolt 19, having its head 20 seated in thebore 6 and its reduced end bifurcated to form an intermediate slot forthe reception of the saw 16, there being transversely alined openings 21formed in the bifurcated end of the bolt 19 to permit the insertion of afastening device or pin 22, which latter extends through a correspondingopening in the body of the saw, as shown.

The casing or socket 5 is formed with a recess 23 in which is seated alocking pawl 24, the teeth 25 of which are adapted to engage the teeth11 of the tubular member 10 for the purpose of locking the tubularmember against rotation when it is desired to clamp the saw in positionon the guard, as will be more fully explained hereinafter. The teeth 11and 25 are of substantially rectangular cross sectional formation inorder to insure a positive gripping action between the parts and thuseffectually prevent their slipping.

Mounted for rotation on the casing 5 is a locking collar 26 having aguiding recess or slot 27 formed in the upper portion thereof for thereception of a spring pressed pin 28. The pin 28 is normally andyieldably held within the slot 27 of the collar by a coiled spring 29,the free or projecting end of the pin being provided with an inclined orbeveled portion 30, so that when positioning the collar on the sawhandle said collar will engage the inclined face 30 and thus retract thepin so as to permit the passage of the collar, the spring 29automatically returning the pin to extended position within the slot 27and thus locking the collar against vertical movement while at the sametime permitting the collar to rotate freely on the saw handle.

Attention is here called to the fact that the inner wall of the collar26 immediately below the slot 27 is formed with a recess or depression32 the wall of which is inclined or beveled for engagement with thecorrespondingly inclined end of the pin 28, so as to permit said pin tobe readily depressed when it is desired to place the collar on the sawhandle. One side of the collar 26 is cut away to accommodate the tubularextension 9, there being spaced lips 33 and 3 1 formed on the collar atthe open side thereof, and adapted to engage the adjacent ends of thepawl 24 for the purpose of depressing the pawl to engage or disengagethe teeth 25 from the ratchet teeth 11. The lower locking lip 34 ispreferably formed with an inwardly extending rib or projection 35adapted to engage a shoulder 36 formed on the lower end of the lockingpawl 241 so that when the lip engages the pawl the co-action between theprojection 34 and the shoulder 36 will prevent accidental rotation ofthe collar on the saw handle. A washer 37 is preferably interposedbetween the head 20 of the clamping bolt 19 and the adjacent head of thetubular member 18 in order to prevent accidental turning movement of thesaw bladeafter the handle 8 has been rotated to clamp the same inengagement with the guard 14. Thus it will be seen that by rotating thecollar in the direction indicated by the arrow in Fig. 1 of the drawingsthe lip 34 will engage the lower end of the pawl 2a and force the teethof said pawl into engagement with the teeth 11 of the tubular member andthus lock the latter in engagement with the casing 5. By now holding theguard 14 stationary and rotating the handle 8 in the direction of thearrow indicated in the upper portion of Fig. 1, the tubular extension 9together with the sleeve 10 will be adjusted rear-wardly thus causingthe clamping member 19 to force the saw 16 within its seat 15 andeffectually prevent wabbling movement of the same during the sawingoperation.

In order to detach the handle it is merely necessary to rotate saidhandle in the oppo site direction which moves the fastening device 19 inthe direction of the saw 16 and thus disengages the adjacent end of thesaw from the groove 15 so that by removing the pin 22 the saw blade mayreadily be detached.

In order to adjust the handle at any angle or inclination with respectto the longitudinal plane of the saw it is merely necessary to rotatethe collar 26 until the lip 33 engages the upper end of the pawl whenthe lower end of the pawl will be disengaged from the teeth 11 thuspermitting the handle to be rotated until the desired adjustment iseffected, the handle being locked in adjusted position by again rotatingthe collar 26 until the lip 34 of the collar forces the active end ofthe pawl into engagement with the teeth 11.

It will here be noted that a shoulder 38 is formed on the wall of thebore 6 for engagement with the head 20 of the clamping member or bolt 19thus to prevent the bolt and sleeve 10 from being withdrawn from theextension 9.

The device is simple in construction and thoroughly practical inoperation and will effectually clamp the handle in different positionsof adjustment with respect to the saw.

Having thus described the invention, what is claimed as new is;

1. A device of the class described, including a handle receiving socket,a saw guard having a threaded portion, a sleeve mounted for rotation inthe handle receiving socket and engaging the threaded portion of theguard, means for locking the sleeve against rotation and a fasteningdevice extending through the sleeve and adapted to clamp the saw inengagement with the guard when the handle is rotated.

2. A device of the class described including a handle receiving socket,a guard having a threaded portion, a tubular member disposed within thehandle receiving socket j and engaging the threaded portion of theguard, means for locking the sleeve against j independent rotation, anda clamping device extending through the sleeve and engaging the saw forforcing the latter in contact with the guard when the handle is rotatedin one direction and for releasing the saw j when the handle is rotatedintlie opposite direction.

l 3. A device of the class described including a casing having a tubularextension, a handle carried by the casing, a guard, a tubular membermounted for rotation in the extension and provided with means forengagement with the guard, means for locking the tubular member againstindependent rotation, and a clamping member extending through thetubular member and engaging the saw for clamping the latter inengagement with the guard when the handle is to tated in one directionand for releasing the saw from said guard when the handle is rotated inthe opposite direction.

l. A device of the class described including a casing having a tubularextension, a handle secured to the casing, a guard hav ing a nippleprojecting within the tubular extension and provided with interiorthreads, a tubular member mounted for rotation in said extension andhaving one end thereof threaded for engagement with the threaded wallsof the nipple and its other end provided with ratchet teeth, a pawlcarried by the casing and engaging the ratchet teeth of the tubularmember, and a clamping device extending through the tubular member andengaging the saw for clamping the latter against the guard when thehandle is rotated in one direction, and for releasing the saw fromengagement with said guard when the handle is rotated in the oppositedirection.

5. A device of the class described including a casing having atransverse bore, a handle secured to the casing, a guard, a tubularmember journaled in the bore and provided with means for engagement withthe guard, a locking device carried by the casing and adapted to engagethe sleeve for locking the latter against independent rotation, aclamping device extending through the sleeve and engaging the saw forforcing the latter against the guard when the handle is rotated in onedirection, and a collar mounted for rotation on the casing and adaptedto release the locking device from engagement with the tubular member.

6. A device of the class described, including a casing, havin atransverse bore provided with a shoulder, a guard having a nipple, theexterior walls of which are threaded, a tubular member journaled in thebore and provided with threads for engagement with the threaded walls ofthe nipple, a bolt extending through the sleeve and having one endthereof provided with a head adapted to bear against the shoulder andits other end provided with means for taigagement with the saw, meansfor locking the tubular member against independent rotation, said boltbeing actuated to clamp the saw in engagement with the guard when thehandle is rotated in one direction and to release the saw when thehandle is rotated in the opposite direction.

7. A device of the class described, ineluding a casing having atransverse bore, a handle secured to the casing, a guard having athreaded nipple, a tubular member ournaled in the bore and provided witha threaded portion engaging the threads of the nipple, a bolt extendingthrough the sleeve and provided with means for engagement with the saw,a pawl pivotally mounted on the casing and adapted to engage the sleevefor locking the latter against independent rotation, a sleeve journaledon the casing and provided with oppositely disposed lips for moving thepawl to operative and inoperative positions said bolt being actuated toclamp the saw in engagement with the guard when the handle is rotated inone direction and to release said saw when the handle is rotated in theopposite direction.

8. A device of the class described including a casing having atransverse bore and provided with a tubular extension registering withsaid bore, a handle carried by the casing, a guard having a threadednipple extending within the tubular extension of the casing, a tubularmember having one end thereof threaded for engagement with the threadson the nipple and its opposite end provided with ratchet teeth, aclamping device extending through the tubular member and provided withmeans for engagement with the saw, a pawl pivotally mounted on thecasing, and a collar mounted for rotation on the casing for moving thepawl into or out of engagement with the teeth of the tubular member,said clamping device being actuated to hold the saw in engagement withthe guard when the handle is rotated in one direction and to releasesaid saw from engagement with the guard when the handle is rotated inthe opposite direction.

9. A device of the class described, including a casing having a boreprovided with a shoulder, a handle secured to the casing, a springpressed pin carried by said casing, a guard having a threaded nipple, atubular member mounted for rotation in the bore and having one endthereof provided with circumferential teeth and its other end threadedfor engagement with the threa ds of the nipple, a bolt extending throughthe tubular member and having its head bearing against the shoulder andits reduced end provided with means for engagement with the saw, acollar mounted for rotation on the casing and provided with a slot forthe reception of the pin, a pawl adapted to engage the teeth of thetubular member for locking the latter against independent rotation, andmeans carried by the collar for engaging and disengaging the pawl fromsaid teeth, the bolt being actuated to clamp the saw in engagement withthe guard when the handle is rotated in one direction and to effect therelease of the saw when the handle is rotated in the opposite direction.

10. A device of the class described, including a handle receiving sockethaving a transverse bore, and provided with a tubular extensionregistering with said bore, a guard having a threaded nipple slidablymounted within the extension, a tubular member having one end thereofprovided with circumferential teeth and its opposite end threaded forengagement with the threads of the nipple, there being a shoulder formedon the walls of the bore, a clamping bolt having its head adapted tobear against the shoulder and its reduced end bifurcated to receive asaw, a pin extending through the bifurcated end of the bolt and engagingthe saw, a pawl pivotally mounted on the socket for engagement with theteeth of the tubular member, one end of said pawl being provided with ashoulder, and a collar slidably mounted on the socket and provided withoppositely disposed lips adapted to engage the pawl for moving said pawlinto and out of engagement with the teeth, one of said lips beingprovided with an inward projection adapted to engage the shoulder in thepawl.

11. A device of the class described including a casing having a bore, ahandle carried by the casing, a guard, a tubular member journaled in thebore and provided with means for engagement with the guard, means forlocking the sleeve against independent rotation, and a clamping deviceextending through the sleeve and engaging the saw for forcing the latteragainst the guard when the handle is turned in one direction and forreleasing the saw when the handle is turned in the opposite direction.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES M. MINTON. [1,. s] Witnesses:

B. R. VATSON,

C. A. RAINWATER.

